Three related improvements that landed together while wiring up the
rotation log infrastructure:
- Fast-fail classifier: errors that clearly indicate the account
itself is the problem (rate limit, quota, banned/suspended, auth
failure, 401/403, 'Kein Upload-Server' from delivery-node etc.)
now skip the remaining retries and go straight to rotation. No
more waiting 5 × 3s between retries just to end up rotating
anyway. Emits a 'fast-fail' rot-log event so the shortcut is
visible.
- Settings: 'Öffnen' button next to the log-file-path input reveals
the active log file (or its directory if nothing's written yet)
in the OS file manager, so users don't have to remember paths.
- rotLog() writes the rotation log synchronously. Only a handful
of events fire per batch; the 500ms flush batching was saving
nothing and made the file look empty when users checked right
after an event. (The main debug log still uses the batched async
path — that one is high-volume.)
655fb6230b